Charge storage in the PANI-α-MnO2polymer-nanocomposite system

Izan Izwan, Misnon and Rajan, Jose (2021) Charge storage in the PANI-α-MnO2polymer-nanocomposite system. In: Materials Today: Proceedings, International Conference on Energy and Environment, 14-15 May 2020 , Paris. pp. 513-519., 41 (Part 3). ISSN 2214-7853

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Supercapacitors (SCs) store electrochemical energy with high specific power, faster charge response, and long cycle life at an electrode-electrolyte interface; however, with lower specific energy than commercial batteries. In this article, structural, morphological, surface and electrochemical properties of a polymer-nanocomposite in the PANI-α-MnO2 system has been systematically investigated. The α-MnO2was synthesized by molten salt methods and the polymeric composite was developed by in-situ polymerization. The materials were characterized by thermal analyses, X-ray and electron diffraction, FTIR spectroscopy, gas adsorption studies, scanning and transmission electron microscopy. The electrochemical properties of the materials before and after PANI modification are studied in 6 M KOH aqueous electrolyte employing cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. A difference in charge storage mechanism from pseudocapacitive type to battery-type was observed upon PANI modification and the corresponding charge storage and charge kinetic parameters have been detailed.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Asymmetric supercapacitors; Battery-supercapacitor hybrids; Electrochemical charge storage; Electrochemical double layer capacitors; Energy storage materials
Subjects: H Social Sciences > HD Industries. Land use. Labor
Q Science > Q Science (General)
T Technology > T Technology (General)
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 08 Nov 2022 02:10
Last Modified: 08 Nov 2022 02:10
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